Impact absorption structure of vehicle seat

a technology of impact absorption and vehicle seat, which is applied in the direction of vehicle components, pedestrian/occupant safety arrangements, vehicle arrangements, etc., can solve the problems of causing a corresponding great impact to the whole seat, damage or breakage of the mechanical parts or linkage of such seat height adjustment devices, and difficulty in adjustmen
US7360832B2Inactive Publication Date: 2008-04-22TACHI S CO LTD
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Patents(United States)
Current Assignee / Owner
TACHI S CO LTD
Publication Date
2008-04-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

Impact absorption structure is provided in side frame element of seat cushion frame, wherein the side frame element is basically of a closed cross-section portion therein, including forward and backward support points therein. In the structure, an opened cross-section area is defined in the closed cross-section by forming a cut-away portion in a lower part of a forward local region of such closed cross-section portion between the forward and backward support points, so that the opened cross-section area is deformable at said cut-away portion by a great load transmitted from a seat back frame thereto, thereby absorbing a corresponding impact.
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Description

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to an impact absorption structure of vehicle seat which is so designed that a local part of seat frame is deformable to absorb an impact caused by a great load applied to the seat in the case of a rear-end collision, or in the case of a backward collision wherein, when a vehicle runs backwardly, a backward side of vehicle collides with something hard or other vehicle.

[0003] 2. Description of Prior Art

[0004] When a rear-end collision or a backward collision defined above occurs to a vehicle, a great load is applied from a seat occupant to a seat in the vehicle in a backward direction, thus creating a corresponding great impact to a whole of the seat. That is, a great impact thus created is transmitted from a seat back of the seat through an upper body portion of an occupant sitting on the seat and imparted to the seat.

[0005] Normally, the vehicle seat itself is formed by robust seat frames suff...

Claims

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